#include <stdio.h>
int main(void)
{
    int x = 10;
    int a, b, c;

    a = x++; // a = 10, x = 11
    b = ++x; // x = 12, b = 12
    c = 10*x++; // c = 120, x = 13

    printf("x=%d,a=%d,b=%d,c=%d\n", x, a, b, c);   
    return 0;
}